#include <stdio.h>       
#include <sys/socket.h>
#include <arpa/inet.h>
#include <string.h>
#include <stdlib.h>


int main(int argc, const char *argv[])
{
	int sockfd=socket(AF_INET,SOCK_STREAM,0);

	struct sockaddr_in serveraddr,clientaddr;
	serveraddr.sin_addr.s_addr=inet_addr(argv[1]);
	serveraddr.sin_family=AF_INET;
	serveraddr.sin_port=htons(atoi(argv[2]));

	socklen_t addrlen=sizeof(serveraddr);
	bind(sockfd,(struct sockaddr *)&serveraddr,addrlen);

	listen(sockfd,5);
	printf("wait client connect\n");
	int acceptfd=accept(sockfd,(struct sockaddr *)&clientaddr,&addrlen);
	printf("client %s has connceted \n",inet_ntoa(clientaddr.sin_addr));
	char sendbuf[128]={0};
	while(1)
	{
		printf("plz input >>\n");
		scanf("%s",sendbuf);
		send(acceptfd,sendbuf,128,0);
		memset(sendbuf,0,128);
	}

	return 0;
}
